lopburi3 Posted November 7, 2019 Share Posted November 7, 2019 2 minutes ago, Max Brok said: In Thailand water evaporates fast. Inside air conditioned rooms perhaps - but Thailand is a very humid country with slow evaporation. 2 Link to comment Share on other sites More sharing options...
moe666 Posted November 8, 2019 Share Posted November 8, 2019 Thais do not use p-traps said an done. My gray water has one system while the toilet has another, also remember there is no vents for anything more than likely you will suck any trap dry because of the lack of vents Link to comment Share on other sites More sharing options...
sometimewoodworker Posted November 8, 2019 Share Posted November 8, 2019 13 hours ago, Max Brok said: But there should be a solution because I slept in many hotels in Thailand and they never have a smell in the bathroom Spend less, smell more. ???? 2 Link to comment Share on other sites More sharing options...
bankruatsteve Posted November 8, 2019 Share Posted November 8, 2019 13 minutes ago, moe666 said: Thais do not use p-traps said an done. My gray water has one system while the toilet has another, also remember there is no vents for anything more than likely you will suck any trap dry because of the lack of vents Traps are common in new construction (OK - maybe not in the upcountry hut) for a long time. They do not get sucked dry due to lack of venting. Link to comment Share on other sites More sharing options...
Kurtf Posted November 8, 2019 Share Posted November 8, 2019 I wouldn't rely on Thai construction advice. When we had our house built the contractor refused to put insulation in the ceiling (to keep the house cool during the day). He said no need in Thailand. Bull poop. the only cure for odors in the bathroom is a plastic seal-able bag filled with water and placed over the drain when not in use. The other non "S" traps all fail in short order. At least that has been my experience. Link to comment Share on other sites More sharing options...
Morty T Posted November 9, 2019 Share Posted November 9, 2019 On 11/2/2019 at 2:05 PM, bankruatsteve said: Looks like a normal drain to me - the kind that lets the smell come in. Others have posted a few different types of trap drains available, but can't remember where. Boonthravorn would be a good place to check. Edit: Just noticed that thing on the bottom. What does that do? Blocks the stink. Gas and fumes (and the ever present cockroaches) from travelling up the pipes. I had all 3 bathrooms refitted with these. Link to comment Share on other sites More sharing options...
Rivo Posted November 9, 2019 Share Posted November 9, 2019 I recently fitted some P traps to both our bathrooms and our laundry, a fairly easy job for me as our house is built up 1m and I can access under the house, I bought the P traps from Thai Watsadu and from memory they were just over 200 baht each, plus a few fittings and some glue and job done........................originally they had the pipe going direct from floor drains direct to the tanks, as you can see in the pic it now goes through the P trap and then back to the tank................... 1 Link to comment Share on other sites More sharing options...
dallen52 Posted November 10, 2019 Share Posted November 10, 2019 On 11/2/2019 at 3:26 PM, banagan said: I need a low profile trap. What about something like this? Make your own. A couple of 90 degrees elbows joined and a few bits of off cut blue pipe. They consider it in the same way as a stench pipe Mai bpen rai... Link to comment Share on other sites More sharing options...
Jonathon Posted January 10, 2020 Share Posted January 10, 2020 The main issue with these Thai traps is that the depth of water seal is insufficient and it will often evaporate allowing foul air (and mosquitoes) to pass. The minimum depth of water seal should be 50mm to be effective. The Thai gully provides little more than 10mm. I have also found the grill is very prone to blocking with hair as others have mentioned. Link to comment Share on other sites More sharing options...
lopburi3 Posted January 10, 2020 Share Posted January 10, 2020 (edited) 35 minutes ago, Jonathon said: The main issue with these Thai traps is that the depth of water seal is insufficient and it will often evaporate allowing foul air (and mosquitoes) to pass. The minimum depth of water seal should be 50mm to be effective. The Thai gully provides little more than 10mm. I have also found the grill is very prone to blocking with hair as others have mentioned. It used as intended it will not evaporate in most locations here before more water is added - it is our wanting dry bathroom rather than normal wet bathroom that is at issue. For shower drain there should not be any such issue There are Thai traps deeper than the normal that should help for general floor drain and adding a shot from the bum gun every day or two will keep even the normal trap full. Yes hair can be an issue but is very easy to clean/remove without the need for chemicals or boiling water and the drains do not get blocked. Edited January 10, 2020 by lopburi3 Link to comment Share on other sites More sharing options...
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